Legis. Kevan Abrahams, D-Hempstead, said the plan, which would have Islanders’ owner Charles Wang pay for the majority of the $400 million price tag with the remaining $80 million coming from the entertainment tax paid on each ticket sold at the Nassau Coliseum over the next 30 years, stems from discussions Jacobs had with Wang earlier this year.

Mangano announced earlier this week that he had issued a Request for Qualifications to select a master developer for the Nassau Hub, which includes the 77 acres in Uniondale where the Nassau Coliseum sits.

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The master developer will be charged with bridging the gap between the dollars necessary to construct a new arena and the rent a sports team should realistically pay to play in the arena. That gap could be filled by seeking mixed-use opportunities for the site, including residential and commercial units.

“Any plan we pick has to be a plan that doesn’t cost the taxpayers any money,” Abrahams said. “The taxpayers made it clear last August that they did not want any additional costs coming from this.”

Mangano’s office appeared lukewarm to Jacobs’ proposal.

“Democrat Boss Jacobs offers obvious components that have already been suggested, however, if he has something serious to add he is welcome to respond to County Executive Mangano’s RFQ,” said Brian Nevin, a spokesman for Mangano.